finally making progress RAM SPEED

yes i do have the cpu oc mines at 3.9 also
now i USED to run it at 1.3 volts fixed
but it seems apperent now theres more luck in a little extra juice to cpu vcore when pushing the ram
so at the moment im running 1.325v at 3.9
 (for reference the temps difference between 1.3v and 1.35v when i was testing over the weekend were an extra 6 degrees C using a noctua heatsink and fan)

i will try to gently drop the volts back down when i feel sure i have a stable ram overclock and update you with my findings

ive set the proc-odt at 53.3 ohms, as a tester it seems ok ,i choose that as it seemed most people used it with sucess ( and yes i couldnt agree more ,we need people to share experiance with what works with what boards and ram brands, to enable us to learn)

i have to set geardown to enabled with the taichi or it will always give me the cold boot loop of death, this seems to be echoed with others on the overclockers taichi thread

so basically at the moment my cl15 ram is
set with xmp
change the first 4 timings to ALL 14 then leave the rest at xmp hence the 35/50
i have however changed the trfc
trfc 1st =312
trfc 2nd = 192
trfc 3rd = 132
geardown = on
bank group swap = disabled
bank group swap alt = enabled
proc-odt = 53.3
dram volts 1.375v (need to lower)
soc 1.05v (need to lower)
vddp 1 volt (need to lower)
vtt-ddr 0.700
cpu vcore 1.325v (need to lower)

future plans :
get the voltages down a bit
test at 3333 mhz
tighten a few more timings *step by slow-step* (using stilts and chews profiles)

Amen for backups..........

JEDEC Standard for DDR4; Updated June 2017
http://www86.zippyshare.com/v/RRs1TYuU/file.html

ODT section begins on pg 161

I'm curious if you have a CPU OC with your memory OC. I use 1.35V for my 3.9GHz OC (which barely qualifies as an OC IMO) with a 1700X.

I used stilt's Samsung B-die secondary and tertiary memory settings with my FlareX 3200, and it helped to get it to run at 3200, which was never a given on my Ryzen PC. Manually setting Proc ODT seemed to help too, which I imagine you've done already. I've been fascinated with Proc ODT lately, which I have set to, IIRC, 60 Ohms. What is your's set to, for my Proc ODT knowledge base? I hate that we don't know what the Auto setting actually is, and there are no specs about it. My newer Intel chipset boards have several ODT options, which never get set to anything but Auto, since there is not much information about it available.

AMD said that for any memory OC (above 2667), the Auto setting for Gear Down Mode is enabled, so 2T. They also said it is easier to OC your memory with Gear Down Mode enabled. We won't see the Command Rate set to 2T, if it is set to 1T, but Gear Down Mode changes it internally. As you said, the usual notion is Ryzen prefers 1T, which is the XMP value for my FlareX 3200.

Your timings are almost identical to the XMP timings of my FlareX, 14 14 14 14 34 48. In the past, I had the occasional cold boot problem with the FlareX, but I haven't had that happen for a while now. I also have AM4 Boot Training disabled.

wardog wrote: And I don't ever want to hear you mention again how expensive and snooty high class MY 4133 TridentZ's are. https://www.dailydeals.io/products/gskill-tridentz-series-16gb-2-x-8gb-288-pin-ddr4-sdram-ddr4-3200-pc4-25600-desktop-memory-model-f4-3200c15d-16gtz-new

hey those are my exact ram sticks/kit

mine were a little bit less £158  samish amount in $$$$$

And I don't ever want to hear you mention again how expensive and snooty high class MY 4133 TridentZ's are.

https://www.dailydeals.io/products/gskill-tridentz-series-16gb-2-x-8gb-288-pin-ddr4-sdram-ddr4-3200-pc4-25600-desktop-memory-model-f4-3200c15d-16gtz-new